I'm a huge fan of Thule's 1-Key locking system. Between both our vehicles we have a combined 16 locks all running the same key. I figured this lock would be a great addition for a quick "coffee shop" or "grocery run" bike lock and would help keep our keychains as light as possible if we also bought the matching lock core. Unfortunately I would never trust this cable lock without it being combined with a hard U-lock. At the thickness of a standard size pencil, this lock would be snipped-off in no time. For now I'm keeping it in my car as a 3rd lock to toss onto the bike rack for when I go into the grocery store. At $55 + the cost of a lock core, it's extremely pricey for the quality you get. I'd love to see this lock re-made in a thicker version, or even a U-Lock from Thule that uses the 1-Key system.